iOS 获取屏幕分辨率 以及放大模式、高清模式区别

     CGRect rect_screen = [[UIScreen mainScreen]bounds];
     CGSize size_screen = rect_screen.size;

     CGFloat scale_screen = [UIScreen mainScreen].scale;

     CGFloat width = size_screen.width*scale_screen;
     CGFloat height = size_screen.height*scale_screen;

     NSLog(@"width:%f",width);
     NSLog(@"height:%f",height);

 2015-03-04 15:35:06.340 reader[10697:179349] width:640.000000
 2015-03-04 15:35:06.341 reader[10697:179349] height:1136.000000

上述情况在iphone6和iPhone6 Plus的缩放模式下，和iPhone5S获取到的分辨率是一样的。

别忘记iphone 6 6+有放大模式和，正常模式

#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)

//放大版的iphone6等于Iphone5的分辨率《求区别办法》

#define iPhone6 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? (CGSizeEqualToSize(CGSizeMake(750, 1334), [[UIScreen mainScreen] currentMode].size) || CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size)) : NO)

#define iPhone6plus ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? (CGSizeEqualToSize(CGSizeMake(1125, 2001), [[UIScreen mainScreen] currentMode].size) || CGSizeEqualToSize(CGSizeMake(1242, 2208), [[UIScreen mainScreen] currentMode].size)) : NO)